Cage-ring for ball-bearings.



E. SACHS. GAGE RING FOR BALL BEARINGS.

APPLICATION FILED SEPT. 9, 1908.

1 @&5,193,- Patented New 26, 1912.

Witnesses inventor ERNST SACHS, or SCHWEiNFURT, GERMANY.

CAGE-RING FOR BALL-BEARINGS.

- Specification of Letters Patent.

Patented. Nov. 26, 1912.

Application filed; September 9 1908. Serial No. 452,299.

T2; all when; it may concern:

Befit- .known that I, Ennsr Saons a subject of the King of Bavaria. residing at No,24- Schult es street, Schweint'urt, in Germany, have inventeda new and useful 111i provement in Cage-Rings for Ball-Bearings, of which the following is a specification.

This invention relates to a guide ring or spacer for the ballsof ball bearings which is made in two parts, and has reference particularly to the connection of the two halves in which the balls are contained in recesses.- i The object of this invention is to provide a reliable connection, but' at the same time to arrange the balls as near to each other as made on the circumference of the guide ring both rings. 'lhese grooves terminate at the ends for instance. in recesses 1 made on the l possible so that the largest possible. number of balls may be used in a bearing. This object is attained by means of devices uniting the t'wohalves and havingsimilar shape and action as the rivets hitherto used and which are introduced int-o'suitable grooves and extending through both halves, special measures being taken for preventing the said connecting devices from falling or being thrown out. The intervals between the single balls can consequently be very small, and the partitions correspondingly thin.

In the accompanying drawing which forms a part of this specificatioii,Figure 1 a guide ring with the connection in question in front elevation, Fig. 9. a side elevation of the ring, Fig. on front view of the inner side of one-half of the ring, Fig. l a cross-section on the line 4-l of Fig. 1, Figs. 5 and 6 are perspective views of two modifications of the connecting means.

Like reference characters designate like parts throughout all figures of the drawing.

The two halves a I) constituting the guide ring, provided in their 'iniic' meeting faces with recesses (Z which coincide and in which the balls are guided, are provit ed on their outer circumferences with a suitable number of grooves f suitably distributed around the rings and located between pairs of the balls, these grooves beingot' dove-tailed cross-section or of some other undercut shape, and extending transversely through flat sides of the rings (a and 7;. Sections of wire h or the like, of a corresponding, that is to say, in this case trapezoidal cross-section, are pushed into the said grooves and theirv laterally projecting ends (Fig. l on the left, Fig. t on the left at the top) are bent down into the recesses g, so-that they inclose the halves a and b at both sides, and hold them together (Fig. 4abelow). The undercut shape of the grooves f prevents the pieces of wire from falling out, and the recesses 9 act in the same way in the construction illustrated, the recesses being preferably undercut or V-shape so that the bentends z engage the overhanging lips of the recesses like a hook. In many cases it would be, however, suflicient to use only one of these engaging and retaining means described. This arrangement which acts as a riveted connection enables the distance be tween the balls to he reduced to such an ex tent, that the largest possible number of balls can be introduced into the bearlng inquestion, for instance when in a bearing there is room for 11,} balls, the guide ring can be made in such manner that. it would .guide 11 balls in a reliable manner and protect them from coming into direct contact with each other. he use of an ordinary riveted connection would be impossible in such a case, more particularly when the dimensions of the ball bearing are small,

and also in cases in which a large number of small balls is used in a large bearing, as

the exceedingly thin partitions 6 would not.

contain sutiicientmaterial for making the perforations to receive the rivets, so that the holcswvould be easily broken duringboring or riveting or the rivets would partly project into the cells and interfere with the rotation of the balls. Although this method of bringing the balls nearer together is a great advantage of the connection according to this invention, it can nevertheless be also used in guide rings containing balls at a large distance apart, for the arrangement is distinguished by its simplicity and reliability and can be easily eiiected. I

Fig. 6 shows another construction of the connecting means 72- provided at the ends with laterally flattened portions n in order to prevent the jumping up "and late'al widening oi the rivet which takes place during the bending over, from widening the grooves f. and also, when the connection has to be disconnected, in order to enable the rivets. after bending the ends, to be drawn through the grooves in spite of the unavoidable deformation.

As in the case of rivets of ordinary shape,

formed with the bent heads 2' 'though this specific form is not essential.

.and rigidly uniting the rings.

the fasteners h could also be provided at one end with a head adapted to engage the notches, only one end being bent down in the manner described. Such a fastener has not been represented, as the arrangement is well known in the art and may easily be copied. For instance, in Fig. 4c the fasteners it may be considered as previously at one end,

The ends 5 could moreover surround the halves to a greater or less extent. The ring halves in this arrangement may have any shape, nor do I restrict myself to solid metal rings. The said connecting means! may bemounted on the inner, instead of the outer, circumference of the spacer, and in some cases at both places. 1

What I claim as my invention, and desire to secure by Letters Patent,

1s- 1. A ball-retainer comprising two rings provided with ball-sockets and; having transverse undercut grooves in their circumferences, and COIIBSDOIldlIlglY-SllflDQCl keys fitted in said grooves thereby rigidly holding the rings together.

-2. A ball-retainer comprising two rings provided with ball-sockets and having grooves formed across the circumferences of both rings, and fastening keys fitted in said grooves tov prevent relative circumferential displacement of the rings, said keys having their ends embracing and secured -to the rings.

3. A ball-retainer comprising two thickrings v side by side, having complemental ball-sockets adapted to confine the balls and 1 arranged closely together with thin partitions between adjacent ball-sockets, and having complemental transverse grooves in their circumferences between the ball-sockets, and fastening keys located within the grooves 4. A ball-retainer comprising two rings arranged side by side and having comple-- mental ball-sockets and intermediate complemental transverse undercut grooves, with I notches in the outer sides of the rings at the ends of said grooves, and transverse keys fitted in said grooves and having their ends engaging in said notches for securing'the rings against separation and relative circumferential displacement.

5. A ball retainer comprising two rings 6. A ball reta ner comprising two rings arranged side by side and'havmg undercut grooves extending across the circumferences of both rings, and kevs fitted and encompassed in the said grooves and adapted to;

engage the rings with their ends. v I

7.'A ball retainer comprising two rings having ball-sockets formed therein and grooves extending across the circumferences of both rings, the outer sides of the rings being provided with tapering recesses. and fasteners located in said grooves and having bent ends catching into said recesses.

8. A ball retainer comprising .two rings with bal l-sockets formed therein and 3ar-- ranged side by side, said rings having under-- cutgrooves. extending across their circum-.

and fasteners fitting. in. I

ferences and having tapering recesses'in their outersides,

said grooves and havingbent ends which engage said recesses.

arranged side by side and having complemental ball-sockets and intermediate groovescxtending across the circumferences of the rings, with undercut notches in the outer faces of the rings at the ends of said grooves,

and transverse fasteners consisting of keysv fitted in said grooves and having their ends bentand engaging in said notches.

10. A ball retainer composed ofa plurals ity of rings having undercut grooves, extending across their circumferences. .and fas-g ture to this specification 1n the presence of two subscribing witnesses.

ERNST sA'oI-i Witnesses LOUIS MUELLE BLAsms Lirrrnusoimin.

Copies of. this patent maybe obtained forfive cents each, by addressing the Commissioner of Patents, Washington, I). 0." M

ball-retainer comprising 'two rings" 

